SB78: Atlas Copco GA55VSD+FF Variable Speed Drive Rotary Screw Air Compressor with Integrated Dryer, 75 HP, 480 V 3-Phase – Includes Electrical Disconnect and Control Cabinet

This lot, SB78, is a high-efficiency Atlas Copco GA55VSD+FF air compressor system combining a rotary screw compressor, variable-speed drive (VSD), and integrated refrigerated dryer (FF).

The unit provides consistent, energy-optimized compressed air for automation, pneumatic tools, and process applications.

The GA+ series is known for its quiet operation, reliability, and advanced Elektronikon® touchscreen control system, making it ideal for manufacturing, processing, and controlled environment agriculture (CEA) facilities.

The compressor is paired with a Square D 480 V electrical disconnect for safe isolation and maintenance.

Specifications (Per Manufacturer & Nameplate Standards)

Manufacturer: Atlas Copco Airpower N.V.

Model: GA55VSD+FF

Type: Rotary Screw Air Compressor, Full Feature (integrated dryer)

Rated Power: 55 kW (≈ 75 HP)

Voltage: 480 V, 3-phase, 60 Hz

Drive System: Variable Speed Drive (VSD)

Max Working Pressure: ~175 psi (12 bar)

Air Delivery: Up to 270 CFM @ 125 psi (varies with speed/load)

Cooling System: Air-cooled

Integrated Dryer: Full Feature (FF) refrigerated air dryer for clean, dry output

Sound Level: Approx. 65–68 dBA (quiet design)

Controller: Elektronikon® Touch advanced controller

Enclosure: Fully enclosed, acoustic-lined cabinet

Dimensions (approx.): 74 in L × 38 in W × 67 in H

Weight: ~2,500 lb

Included Equipment:

480 V Square D disconnect switch and fused control cabinet (labeled “#2”)

Mounted copper discharge piping to air receiver (Lot SB77)